Our posts crossed, Chris!
Yes, I have seen the dinosaurs at NHM, but a very long time ago now! It's but a distant memory!
Have you seen the dinosaurs at Crystal Palace Park? As you used to live in Dog Kennel Hill, I strongly suspect that you might have done?
They were the first dinosaur sculptures in the world, pre-dating, by six years, the publication of Charles Darwin's " On the Origin of the Species."
The models were first classed as Grade II listed buildings from 1973, extensively restored in 2002, and then upgraded to Grade I listed buildings in 2007.